Wall-mold.



No. 856.952. PATBNTLD JUNE 11, 19o?.

- ILLLHAHN.

WALL MOLD.

APPLICATION FILED FEB. 13. 1905.

2 SHEETS-SHEET 1.

Ill

y'].`o. 856,952. PATENTED JUNE 111, 1907.

H. H. HAHN.

WALL MOLD.

APPLIOATION FILED rms. 1a. 1905.

2 SHEETS-SHEET 2.

5o .view illustratingA my improved wall mold in l NITED srnrns narrante centen.

HOWARD H. HAHN, OF DENVER, COLORADO, ASSIGNOR TO THE WES'IERN ENGINEERING COMPANY,

OF DENVER, COLORADO.

WALL-MOLD.

specification of Letters Patent.

Patented June 11` 1907.

.F0 a/ZZ whom it may concern.- Be it known that I, HOWARD H. HAHN, a

l citizen of the United States, residingat the cit and county of Deliver and State of Colora o, lhave invented certain new and useful Improvements in Wall-Molds; and l do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it aprtains to make and use the same, reference ving had to the accompanying drawings,

and to the letters and gures of reference marked thereon, which form a part of this specification.

'My invention relates to improvements in wall molds consisting of a device whereby a lwall may be formed 1n place without the necessity of constructing 1t of pieces or blocks. p4 My improved device makes it practicable to com lete a wall as a ycontinuous structure, the mod being 'clamped to the wall and movable both vvertically and horizontally. It is so constructedas to form a certain portion. of the'wall at each molding act, the size of the parts so formed depending on the size of the mold. Afterv the one molding act is comvpleted, the device maybe unclamped and moved vertically or horizontally, when the operation is repeated. In this way a wall 3.0 0

any size'or lengthl may be formed of suitable material as cement concrete.

The device consists of a mold formed of two members connected by suitableI devices whereby the members may be clamped in plae during the formation of a portion of the wa It further consists of a core for use in connection with the mold, in order that the wall may be formed hollow or provided with cavities at suitable intervals. erably'composed of two adjustable members Vwhereby it may be loosened and withdrawn from its position in the Wall at pleasure.

Having brieil outlined my improved construction as wel as the function it is intended to perform, I will proceed to describe -the same in detail reference being made to the accompanying drawing -in which is illustrated 4anen nibodiment thereof.

In this drawing, Figure 1 is a perspective position for use. Fig. 2 is an end view ofthe samethe mold and wall being shown in sectionl ,l Fig. 3 is aside elevation of the mold This core is pref-A shown in detail and partly broken away. 5 5 Fig. 4- is an end view in detail illustrating the mold which is shown partly in section. Fig. 5 is a side elevation of the core. Fig. 6 is a section taken on vthe line (5-6 Fig. 5. Fig. 7 is a top plan view of the core.

The same reference characters indicate the same parts in all the views.

Let 5 5 designate the members of my improved mold; These members may be forinedof any suitable material as wood. 05 They consist of sides 6 6 connected in any suitable manner and provided with interior walls 7. At each extremity of each side 6, is located a post 8. To the top of each ost S is attached a nut 9 in which is thrcadedpa shaft 7o or rod 10 provided with right and left threads engaging the nuts 9. In the center of the shaft 10 is located a hand wheel 12 for manipulatin the shaft. Each post is also provided wit an additional nut 13 secured both 7 5 to the post 8 and the top of the sides 6 by means of suitable bolts. are also threaded screw shafts 14 provided with right and left threads engaging the respective nuts 13. The shaft 14 is also pro- 8o vided with a hand wheel 15. The shafts 1() and 14 and their hand wheels are substantially identical but they are given different reference characters for convenience of description. The .posts 8 at each end of the 85 structure are substantially the same and are connected in the same manner. The screw shafts 10 and 1.4 at cach end of the device, forni means for clamping the mold members to thc wall and also means for loosening the 9o clamped members when it is desired tomove the mold from one position to another. Each' side 6 ol the mold as shown in the drawing is braced by tie rods 16.

The construction of the core used in con- 9'5 nection with the mold for forming recesses in the wall at suitable intervals will now be described. '.lhis core may be designated in its entirety by the numeral 17. As shown'in' the drawing it consists of two members hav'- Aros ing side walls 1S and overlapping ends 19. 'l Each of these walls is provided at the top with two ears or metal projections '20 in which are threaded screws 21 provided -with right and left threads at their opposite ex# ro5 tremities. In the center of each screw is located a hand wheel 22 to facilitate themanipulation of the screws. Near the lower In these nuts 13, e",

npart of the two members 17 and on the inside is located a spacing plate 23 which is hinged to one of the sides as shown at 24.7. Its extremity remote from the hinge 2e is pivotaily connected with a vertically siidable rod 2G engaging eyes 37 formed on the inside of the opposite side member 1S. This rod 2 passes through a metal part 28 at the top of the side member. lTo the upper extremity of this rod which is threaded for the pur pose is applied a thumb nut 29 to facilitate vertical adjustment. From this description it will be seen that ythere are two screws '2l located at the top of the core for purposes of adjustment, while the spacing plate 23 is centrally located between the screws, and at the lower part of the device on the inside. By means of the serei'vs and thespacing plate, the sides of the core may be so adjusted that they are parallel with each other.

From the foregoing and operation oi my improved device 'will be readily understood. Assuming that a base designated 30 in Fig. being oi somewhat greater thickness than the thickness oi' the wall proper, the members oiE my improved meid may be placed thereon and regulated so that the space between the sides shall correspond with the thickness of the wall. The core is then placed in position between the sides, after which 'the material of which the Wall is to be composed, is introduced until the space between the sides of the mold and surrounding the core i7 is iilled. After this is sulliciently dry to Warrant the removal oi' the core in the mold, the core is adjusted so as to make .it somewhat smaller whereby it may be easily raised Yfrom its cavity in the Wall. fitter it has Vbeen elevated a suitable distance but 'not description the use 2, is formed, the same ssses entirely out oi after which they are again tightened by means of the screw shafts upon the Wall, when the operation ci molding another section of Wall is repeated. In this Way the matter may be carried on indefinitely.

laviir;` thus described my invention, Wh at l claim is :-v--

l. A. Wall mold consisting of two side members, suitable (,lampingl devices connecting the side members whereby they may be securely connected 'with the Wall, and a core interposed between the-side members and consisting of two distinct parts, screws pro-- vided `with right and leftthreads connecting the core parts, and a spacing plate hinged to one part, a rod connected with said plate and vertically slidable on the other core part, and a nut aise applied to the rod to adjust the latter and operate the spacing plate,'substan tialiy as described.

2. A core for molds consisting of two distinct members, screws provided with right and lett threads connecting the members,

vand a spacing plate hinged'to one member, a

rod connected with the plate and vertically slidable on the other member, and a nut also applied to the rod member, to adjust the latter and operate the spacing plate, substantially as described.

ln testimony'mvhereoi l affix my si gnature in presence oi two Witnesses.

HOWARD H. HAHN.

` BARR, BEN, NELSON.

The mold members. are f 

